15-Letter Words Matching __S_I__________

There are 25 15-letter words that match __S_I__________. 8 are common words, such as DISCIPLINARIANS and DISSIMILARITIES. A rarer one is RESPIRITUALIZES. In this set, A is the most frequent open letter (21 words). 14 words contain a doubled letter.

Full list 25

Common words

disciplinariansdissimilaritiesdistinctivenessdistinguishablehospitalizationinstitutionallypessimisticallyunsuitabilitiesdistinguishablyfashionablenessinspirationallypassifloraceous
disciplinariansdissimilaritiesdistinctivenessdistinguishablehospitalizationinstitutionallypessimisticallyunsuitabilitiesdistinguishablyfashionablenessinspirationallypassifloraceouspassionlessnesspestiferousnessdespiritualizeddespiritualizesdestitutenessesfissiparousnessmisdistributionmissionizationsobstinatenessespostinoculationpostirradiationrespiritualizedrespiritualizes

About this list

Words
25 (8 common words)
Common example
disciplinarians
Rare example
respiritualizes
Doubled letters
14
Ending in S
14
Most frequent letter
A (21)

Questions

How many 15-letter words matching __s_i__________ are there?

25. 8 of them are common words.

What is a common example?

DISCIPLINARIANS is among the common words in this set.